Control mechanism



' Nov. 4, 195 2 F, 5, BOYER 2,616,306

CONTROL MECHANISM Filed April 6, 1949 5 Sheets-Sheet 1 1N VEN TOR.

Fred S. Boyer "ww/z w Nov. 4, 1952 F. s. BOYER 2,616,306

' CONTROL MECHANISM Filed April 6, 1949 5 Sheets-Sheet 2 IN V EN TOR.

Fred 5 figyer 5 ShGBt-SheBt 3 F. S. BOYER CONTROL MECHANISM um Q Nov. 4,1952 Filed April 6, 1949 "VINVENTOR Q3 MN wkwk Nov. 4, 1952 F. s. BOYERCONTROL MECHANISM 4 t e M I A .w 9 M e h s mm WNK 3mm wk w mm km E 9 1 6l n M d h 1. F

\ M mu IN V EN TOR. Fred 6. Boyer BY WzWfl-fl aziy Nov. 4, 1-952, gam yI 2,616,306-

- CONTROL MECHANISM ,0. l z 5% 75a 6 I 9 I65 INVENTOR.

Fred 3 Boyer Patented Nov. 4, 1952 UNITED STATES FATE OF P ICE CONTROLMECHANISM Fred, S;.- Boyer, Chicago, Ill.

ApplicationiApril6; 1949, Serial No. 85,918

:'Claims.g= (Cl. 74 491);

This invention relates to control mechanisms. and more particularly; tomechanismsfor interconnecting separated controlling and controlledelements in a manner such that substantially universal controlling orpositioning movementsimparted to the controlling element aretrans--mitted to, and fol1owedby the controlled element.

One'of theobjects' of my invention is to provide a control mechanism inwhich two separate and independently operable motion transmitting clements areiactuat ed-byasingle controlling part, each in accordance withone' of twotransverse planes of motion of the controlling-part, forimparting:likemovementsto"a controlled part separated in position fromthe controlling part Anotherobject of the inventionis toprovide acontrol mechanism which is subjectto versatilityof design andconstruction for determining the normal angular-positions of controllingand controlled parts" in reference to intervening motion translatingparts; so as to provide for mounting and operation at a wide variety ofangles and positions. a My inventioxg' the provision further hasw-ithinits purview the angular position of a controlled part, within=- awiderange of angles, by-the-sim-il'ar angular;

adjustment of a controlling part:

In a control mechanismof'the-type referred to, it is a furtherobject-ofmy invention to provide motion transmitting: elem'entsof acharacter which avoids the necessity (at-indirect compound movementsinytwo' planes for reachingcertain angular positions.

As another object? therinventi'on comprehend's the provision of" acontrol mechanism adapted to: the provisionofiuniversalposition-adjustment within'a-wi'de range andsuited to'enclosure with:-

in: ahous-ingf-havi'ng agstationary mid -portionbetween the controllingandcontro'lled parts;

It -is-= a further obj'ect of my: invention, to. pro-1 v-ide a IIIlOtQrCDUtIiOl mechanism-i having amid-w portion between .the;controlling; and controlled; partswhich. is-iextensible and retractableibe. tween limitsitoi adj usted-lengths.

Myiinventioni also .has within its :purview; the;provision.of;-a..r.emote controlimechanism adapted;- to;- aiwwideivarietyof uses including; that of; ad justinggtheiposition of a.spotlight.or thealil ei In the; disclosed control mechanism,-; 1 have:further provided; a structure adapted to ease-of; installation with:respectto a sunporting-= strucwtureaas well as .to caseot operation, anddura-v bilit p.v

a remotecontrol mechanism Other objects andadvantages of'the inventionwillbe apparent from the following description andthe-accompanying-drawings in which similar characters of referenceindicate similar parts throughout the-several views;

Referring to the five'sheets of-drawings,

Fig. 1- is adiagrammatic side elevational view. which depicts thestructure and arrangement of a preferred form of -this-invention;

Figs. 2,- 3 and 4 are respectively diagrammatic side elevationalviews,similar toFig. l, which illust'rate difierentmodifications of my;control mechanism;-

Fig. 5 is-a side elevational'view of a spotlight- Figs. '7 and" 8 are'respecti-velyend sectional views-taken substantially on lines 1-! and88 of- Fig.2 5 and looking in the directions indicated by accompanyingarrows; I

Figsp9 and 10 are each fragmentaryside-views. partially in section, anddrawn to ail-enlarged scale which illustrate the internal structura ofthe spotlight shown in Fig. 5';-

Fig 11 is a fragmentary sectional view. taken substantially i on a linell-H of Fig. 10 and viewed in the direction indicated by the arrows;

Fig. 1-2 is-a -iragmentary side sectional view'or a spotlightstructuresomewhat similartothat' depicted inFig. 5, but whichembodiesmodifica tions of my control mechanism;

Figs; 13 and 14 are-respectively'side elevational andtop planviews of astructure embodying an othenmodification of my disclosed control-machFigs. 15and 16 are end sectional views taken at a. position' suchasthatindicated by a line? l5 -|.5 in Figrl i andillustrating modifications-0Pthe disclosed struct'ure;

Fig. 171 is a. fragmentary side" view; partiallyf-in section, whichdepicts. a: structural embodiment of'one. end of-mycontrolmechanism, as.illllSL-u tratediin Figsj..4 and '18:,

Fig; 18 @isr-aqside; elevational. view depictingla; structuraladaptation of: mycontrol mechanism as depicted, in Fig. 4;, to 5adouble. spotlight;

I Fig. 19 is a fragmentarygside SCtlQH&]-I.VlBW3 illustrating anexemplary internalstructure for; the other end; of thespotlightof: Fig18 fl'Qm;

that illustratedtin Fig. 1-7-and Fig. 20; is a fragmentary sectionalview-taken;-

substantially on. a. line. 20-20 v.of. Fig.. 19, and: in:

the-direction indicated by accompanying-arrows.--

In the exemplary embodiment of my invention which is depicted in theaccompanying drawings for illustrative purposes, I have not only shownmy preferred form and various modifications of the control mechanism perse, but I also illustrated the structural adaptation of my controlmechanism to remotely adjustable spotlights. While the illustratedadaptations of the invention are associated with spotlight structures,it will be readily apparent that my control mechanism has manyadditional adaptations for remotely adjusting, or effecting movements ofa controlled part through a substantially universal range of angularpositions within predetermined limits and in response to similaradjustments and/or movements of a controlling element.

Having reference to the control mechanism depicted in Fig. 1, acontrolled part, for illustrative purposes, comprises a manuallyoperable handle 25, at one end of which is a yoke 26 which carries ashaft 21, which shaft extends laterally across the yokein a directiontransverse to the axis of the handle. The shaft 21 is journalled in abearing 28 and has a bevel gear29 mounted at one end thereof anddrivingly secured to the yoke. A spacing collar 39 which is secured tothe shaft 2'! locates the shaft and handle in one direction relative toone end of the bearing. A second shaft 32 is secured to, and extendsfrom the bearing 23 in a direction laterally to the axis of thatbearing. This second shaft has a bevel gear 33 secured to the endthereof opposite the bearing 28 and disposedin concentric relationshipwithrespect to the axis of the shaft 32, as well as being in a generalplane which is substantially parallel to the axis of the shaft 21.Abevel gear unit 34 has two sets of teeth 35 and 36 in angularly opposedrelationship and is mounted for rotation on the shaft 32 between thebevel gear 33 and the bearing 28. The bevel gear 29 on the shaft 21 isin mesh with the teeth 36 of the bevel gear unit 34, while the teeth 35of that gear unit preferably are in adjacent relationship to the teethof the gear 33.

From the description thus far, it may be observed that when the handle25 is turned about its axis, it not only rotates the shaft 32, and withit the gear 33, but also turns both gear portions of the, bevel gearnnit34, by virtue of the meshing relationship of the gear 29 and teeth 36.Furthermore, when the handle 25 is swung rotationally about the axis ofthe shaft 21, without being turned about the axis of the shaft 32,, thebevel gear 33 remains stationary, while thebevel gear unit 34 is rotatedabout the axis of the shaft 32 by the gear 29. While the term bevelgear" is used herein to refer to the types of gears utilized in thepreferred embodimentof my invention, it is understood that other formsof gears might be utilized to accomplish like purposes with similargeneral arrangements of parts.

The parts thus far referred to comprise a controlling ensemble. In thepreferred embodiment of my invention which is depicted in Fig. 1,additional mechanism, including an intermediate drive 31, is utilizedfor translating movements from the controlling mechanism to a controlledmechanism, in a manner such that movements of the controlling part orhandle are reflected in corresponding and similar movements of acontrolled part. In the disclosed structure, the intermediate drivemechanism 31 has coaxial and relatively rotatable shafts 38 and 39; theshaft 39 being tubular and having the shaft 38 journalled therein forrotation, as well as extending therethrough so as to project beyond theshaft 39 at both ends. At one end, the shaft 39 has a bevel gear 40drivingly secured thereto which meshes with the gear 33 of thecontrolling mechanism. Adjacent the gear 49, and drivingly secured tothe end of the shaft 39 is a bevel gear 42 which meshes with the teeth35 of the bevel gear unit 34. With this arrangement of parts, rotationof the handle 25 about the axis of the shaft 32 effects correspondingrotation of both shafts 38 and 39 of the intermediate drive mechanism,while movement of the handle about the axis of the shaft 21 producesrotation of the shaft 39, while the shaft 38 is held stationary.

It is to be understood that while the shafts 33 and 39 are depicted intheir conventional form and as being substantially straight, they could,for similar purposes, be of the flexible type, or could. be variedotherwise as, for example, by having the end portions thereof segregatedand operatively connected by pulleys and belts or the like. Gears 43 and44 are preferably like the gears 49 and 42 respectively, and are securedto the opposite ends of the shafts 38 and 39. For

effecting the controlled movement, or determining the position of acontrolled part 45 by the actuation of the handle 25, with the mechanismdisclosed, that controlled part 45 is preferably connected to the gears43 and 44 through acontrolled gear mechanism which is substantiallylike, and in opposed relationship to the control-T ling mechanism. Thatis, the controlled part has a yoke 46 secured thereto which carries alateral shaft 41. The shaft 47 isjoui nalled inabearing 48 and has abevel gear 49 mounted on one end thereof which is drivingly connected tothe yoke 46. At the end opposite the bevel gear, the shaft 41 is locatedendwise within the yok by a spacing collar 50. A shaft 52 projects fromthe exterior of the bearing 48 in substantially perpendicularrelationship to the axis of the shaft 47 and has a' bevel gear 53secured to the end thereof opposite the bearing. The gear 53 meshes withthe gear 43 of the intermediate driving mechanism. Also,

. 32 effects rotation of both of the gears 40 and 42,

as well as the shafts 38 and 39 and the gears 43 and 44. This, in turn,produces like rotation of the gear 53 and bevel gear unit 54 about theaxis of the shaft 52 to rotate the controlled part 45 about the sameaxis, so that the controlled part 45 is driven in a manner correspondingto the movement of the controlling part. like size providing the similarratios at both ends of the intermediate driving mechanism, the movementscorrespond in extent, as Well as in direction. On the other hand,swinging move-, ment of handle 25 about the axis of the shaft 21 rotatesthe gear 42 and shaft 39 while the gear 40 and shaft 38 remainstationary. This movement actuates the bevel gear unit 54 so as to movethe controlled part about the axis of the shaft 41 in a direction and toan extent corresponding to the movement of the controlling With gears ofI tro'lling and controlled parts; about the axe i of those shaftsi are.substantially universal within" tha limits -of the movements? of. thecontrolling 1 and controlled partsl In thei modified forms of-my.invention which"; araillustratedinzFigs. 2, 3iand 4, reference characters like-those used in the description of the structure shown in Fig.1=will be utilized 'to.:desi-g.;-' nate similar. parts which performcorresponding functions. Also,. to impart'an understanding of themodifi'cations, with brevity', the description of:

thedisclosed: modifications will. be devoted main- 1y.- toithe.differences: of structure and. operation frome th'ose previously setforth with respect to;

thestructureof Fig. 1.

Ihhthe rhodified structurei disclosed in Fig.2,

tori-example the intermediate" driving mecha-x nisnt is like thatdisclosed and described :in're- 5pect-I:lt ;.-Fig- 1.. parts; however;are-modified; In the; controlling part, a bevel' gear 51 has spaced andsubstantial- 1y parallelprojecting lugs 58 and 59? secured thereto- 'toform a'yoke and provide aligned bearings 60 and 62' in whichxacontrollin partv 63'T having ashaft portion 64 and a handle portion 651is mounted for rotational movement. The handl portion 65; inthedisclosed s'tructura is at:

ends. The vbevel gear. 69iiis inmesh with the:

bevel gear 1 66 on the controlling. part 53,2 while the :bevel gean 10is in mesh with, the. bevel igear 40,?on the shaft,38. The .bevel' gear51'imeshes1 withxthe'bevelgear dzzonthe. shaft, 39'. In thisstructure-swinging movement of. the controlling, part 63about the axisof. the shaftxBl drives both of the bevelgears 51 and 10 so as toturnboth shafts '38 and -39.' Rotation of thecontrolling part ;-63--aboutthe axis of its shaft portion 64 drives; -the1bevel gears 69and'10' atthe opposite ends of the shaft 61 and turns only the shaft 38- of theintermediate drivemech-anism.

At theopposite end of the intermediate drive. mechanism, and as in theprevious instance, thecontrolledpart is actuated by a mechanism.simi-.

larinstructure and in opposed relationship to that of the controllingmechanism. That is,.the gear43 meshes with a bevel gear 12; which lattergearis secured in concentric relationship-to the end fof'ashaft 13.,Another bevel gear '74 is securedtoth-e opposite end of the shaft I3 inconcentric and parallel relationship to the gear 12. Also, -.a ,b'eve1gear 15 'is -journalled for rotation onth'eshaft 13 between the bevelgears 12 and 14, and is in mesh with the bevel gear 44 of theintermediate drive mechanism. On the face of the gear 15 opposite thebeveled teeth; substan tially.parallelandseparated lugs 16 and 11 aresecured thereto and project therefrom. These lugs rotatablysupport .acontrolled part 18 having a'shaft'portion 'lS. In the disclosedstructurethe controlled part 18 is in the form of a yoke which isadapted to carry an element which iS 'tOfbG moved and have its positiondetermined byt operation of a. handle 65. A bevel gear mesheswith thegearM and is drivingly secured to the shaft portionflQ to control therotational movement of the controlled part about the axis.

ofthat shaft portion. I

In" the 'modifiedform of the invention which- The controlling andcontrolled Between the I lugs 58 and is disclosed i in Fig. 3", thestructures L of '-the.-i2:eon='=:= trolling: and controlled parts: aswell as; thatl of"? theogearsi-applied. to'lone(end of the inter ed atedriving mechanism. are varied: toreffectta change of therelativerpositions of the .1 controllingrand controlled parts, withrespect to the "intermedia'te1 drivingflmeclranismrwith-outtaltering,thesimilarit. ty of the controlling, and conrolled movementsi of theparts;v In the: controllingfemechanisml a controlling: part 82 1' has a.handle portion 83 at? one end of a shaft portion1 84i and -a bevel rgear 85 issecur'ed to: the other end of-the-shaft 'por tion.Intermediate the handl'eiiportion -and bevel gear, the shaft portion isj'Qurnalled for rotation a1 movements in a bearingi8fij-wwhich -bearinglsecured in I transverse relationship to': one=-end of ash-aft 81. Atit's other end; theshaft fl'l has' secured thereto a bevel'gear; 88disposed i :1 Planesubstantially parallel to "the axis. oi the" bearinglifif: The bevel gear 88 is in mesh withi a bevel-"gear 89 which issecu'red' toone'end 'of the shaft 3 9: of the intermediate-drivingmama-:- nism. Intermediate-the bearing'tli and the gear 88'; abev elgear unit190 is journalledfor-"rotation; on the I shaft 81. Thisbevel-..gear unit has -=two sets of "teeth 92. and i 93 in 'angularly':opposed relati-onship; the teeth 92- thereof i being 'in mesh with thegear 85 on the controlling part; and the teeth-93 being in meshwithab'evel 'geari fl on' the end of the shaft 38 I of-theintermediatedriv in mechanism; a

In addition to the variation of the positionsof the controllingand-controlled parts relative to the intermediate driving 'mechanism, theSf/IuC-f ture' of-= Fig. 3 also adaptsa gearing-f for those parts,which is similar to that of Fig; 1', to acm ation of controlling andcontrolled parts=quite like those illustrated in-1*"i"g-,- 2'. Intheco'n'trolled mechanism, a bevel gear =9 5--is in mesh with the gear 33on the end of the shaft 38 and hats-. se"-"- cured thereto in concentricrelationship a a shaft 96 which projectsfrom one face thereof At the end-of- 'the shaft 96 opposite the gear-95g a gear 91 is secured to K theshaft with a -plane of -rota;-- tion substantially parallel to thegeneral 'plane ofthe-gear 95: Intermediate-thegear-91 and gear 955 abevel gearunit 98 is-journalled for re tation on th'e'shaft 96*a'nd hasteeth 99-which mesh with the; bevel gear M on the end ofthe shaft 39'of-th'e intermediate driving-"rnechanisme On the face of the gear unit98 opposite the bevelled teeth, it hasseparated lugs IU'B' andHD-Fsecured thereto and projecting therefrom. These lugs 'rotatably supportcontrolled part1 Mihav-- ing ashaftportion I9 3; A-bevel gear l02 is'drivingly' secured to a-shaftportion" I03 of the con s trolled part MMtorota-te-the shaftportion I93 of the controlled part-in response torotation of the shaft38 and ear 43.

In-respect to this form of the invention it-rnay be observed thatrotational movement of the controlling part 82 about the axis fof'theshaft portion 84*thereof effects rotation of th'e gear 85, gear unit90,'and gear-94 toproduce rotationalmovement ofthe controlled part I04in the same direction through the action of the gear 43', gears Stand 91and gear 32. Also, rotational'move ment of the controlling part 82about, the'axisof the shaft 8! turns both the gear unit and gear 88 torotate both shafts of the intermediate drivingmechanismyand therebyturns the drivenpart I04 about the-axis. of the-shaft 96 in a directioncorresponding to the movement of the controlling part:

In the-mechanism disclosed in Fig. 4,the inter 7 mediate drivingmechanism is like that depicted in Figs. 1 and 2 and the controllingmechanism is similar to that illustrated in Fig.- 3,- except that theposition thereof with respect to the intermediate driving mechanismischanged and the bevelgear 85' is reversed in its position on theshaftportion of the controlling part, as the result of the change of thepositions of the controlling mechanisms between Figs. 3 and 4. In Fig.4, the rotational movement of the controlling part about the axis of theshaft 81 drives the gear 40 on the end of the shaft 38; while rotationof the controlling part about the axis of its shaft portion 84 drivesthe shaft 39 through the gear- 85.. gear unit 90 and gear 42.

The controlled mechanism in this form, on the otherhand, is depicted ina form indicating a manner of extending the parts thereof to effect anelongation adapted to uses in determining the positions or efiectingmovements of a different type of controlled part or parts. Asillustrated, a bevel gear unit I05 has bevel gear portions I85 and I01in substantially parallel relationship and having thereon teeth inangularly opposed relationship at the opposite ends of a bearing sleeveI08. A shaft I09 extends through and is journalled for rotation in thebearing sleeve I08. At one end, a bevel gear H is secured to the shaft,while at the other end a bearing H2 is secured to the shaft with itsbearing axis substantially parallel to the plane of the gear H0. A crossshaft H3 is journalled for rotation in the bearing H2 and projects-fromthe opposite ends of the bearing for carrying parts, such as spotlightsI I 4 and H5. A bevel gear I I6 is drivingly secured to the shaft H3 andmeshes with the gear portion I01. of the gear unit I05. The gear I06 andthe gear H0 mesh with the gears 44 and 43 respectively of theintermediate driving mechanism.

With this combination, swinging movement of the controlling part 82about the axis of the shaft 81 effects rotation of both the shafts 38and 39 of the intermediate driving mechanism and thereby turns the shaftH3 and its supported parts, such as the lights H4 and H5, about the axisof the shaft I09. Rotation of the controlling part 82 about the axis ofits shaft portion 84 turns only the shaft 39 of the intermediate drivingmechanism, and thereby rotates the controlled shaft H3 about its axis bythe rotation of the gear unit I and bevel gear I I0.

With this basic understanding of the control mechanism of my inventionand certain of its possible variations for adaptin it to differentpurposes or environments, structural embodiments and exemplaryadaptations thereof to the control of a spotlight or the like will beexplained with reference to the additional figures of the drawings forillustrative purposes. For example, the basic control mechanism of Fig.1, although suited to other uses, is depicted in Figs. 5 to 11 inclusivein its adaptation to the remote control of a spotlight of the type inwhich the intermediate driving mechanism extends through the body orwindshield of an automobile, boat or the like, so that the controllingpart is handy to an operator and the light is at an exterior positionsuited to effective use.

Referring in detail to the structural embodiment of my invention whichis illustrated in Figs. 5 to 11, the controlling mechanism is enclosedwithin a housing H1 which includes an upper portion I I8 and a lower cupportion I I9; the lower cup portion I I9 having a margin movablyadjoining the upper portion H8 and overlapped By,

a flange I20 on that upper portion to provide. a. substantially dustproof enclosure. The lower cup portion I I9 is fitted between the sidesof the yokev 26 at the end of the handle 25-and encloses the bearing 28and bevel gear 29. This lower cup portion is secured to the bearing 28by fastening means, such as a screw I22 and has aligned side openingsI23 and I24 through which the shaft 21 extends; the shaft 21, in thisinstance, having a head I26 at one end and being threaded at itsopposite ends to receive a screw cap I25. The shaft 21 is also keyed tothe bevel gear 29 as indicated at I21, so that rotational movement ofthe handle 25 about the axisof the shaft 21 effects correspondingrotational movement of the bevel gear 29 and turns the shaft relative tothe bearing 28. In the form shown, the shaft 32 is tubular and projectslaterally from the upper side of the bearing 28. This shaft has thebevel gear unit 34 journalled thereon and also has the bevel gear 33secured thereto.

In the structural form disclosed, a stud I28 extends through the hollowshaft 32 and has a head portion I29 disposed within a cylindrical recessI30 in the bearing 23, which recess is concentric with respect to thehollow shaft 32 and extends laterally across the shaft 21. This studextends into an internal boss I32 in the upper housing portion I I8 andis secured therein by fastening means such as a set screw I33, 50

that when thus secured it serves to provide a,

opening I34 provides a convenient mounting seat.

for a switch I35 to support that switch at a convenient position foroperating its actuating lever I36, and the switch provides a convenientclosure cap for the opening. It may be readily understood that when theset screw I33 is loosened, the assembly, including the stud I28, shaft32, bearing 28, bevel gear 33, bevel gear unit 34, bevel gear 29, crossshaft 21, the cap portion H9 of the housing and the handle 25, may beassembled or disassembled with respect to the upper housing portion II8.

Opposite the opening I34, and in angular relationship with respect tothe axis of the shaft 32 and stud I28, the upper housing portion II 8 isprovided with a projecting and substantially cylindrical sleeve portionI31 which serves as a supporting connection between the controllingmechanism and a tubular housing I38 which preferably encloses the shafts38 and 39 of the intermediate driving mechanism. For purposes of assembly and disassembly, a filler sleeve I39 is removably mounted in thesleeve portion I31 of the upper housing portion H8. This filler sleevehas a counterbore I40 which snugly, fits the end portion of the tubularhousing I38; the upper housing portion H8, filler sleeve I39 and tubularhousing I38 being normally held in assembled relationship by fasteningmeans, such as set screws I42. At its inner end, the filler sleeve I39has a plane surface which provides an abutment for the gear 42 which issecured to the shaft 39 of the intermediate driving mechanism. Ad-jacent the bevel gear 42, the bevel gear .40 is effects rotation of theshaft 39.

"tweenthes'ide portions "of the-yoke 46.

secured to a projecting end of the inner shaft 38 of the intermediatedriving mechanism.

As disclosed, both the shafts 33' and 39 of the intermediate drivingmechanism are hollow, in order to provide an internal passage for aninsulated conductor I42 extending from the switch I35 to theilluminating element (not shown) .of the spotlight which comprises thecontrolled part in this embodiment. The shaft 39 is journalled forrotation within the .housing I38 and the end portion of the fillersleeve I39, while the shaft 38 is journalled for rotation within theshaft 39. The opening through the "inner shaft 38 is of a sizesuflicient that it provides for Iree rotation of that shaft relative tothe insulated conductor I 42.. For convenience in mounting th controlmechanism relative to asupportingstructure, it is my preference todivide the shafts 38 and 39 into separable portions 'by notchedcuts I43and I44 respectively (Fig. 9) whereby the controlling and controlledends of the complete assembly 'may be separated without the necessity;or disassembling either the controlling or controlledassembliesthereof.

In the assembled relationship of the parts ,of the controllingmechanism, as depicted in Fig. 9, the bevel gear 29 meshes with theteeth "36 of the bevel gear unit '34, while the teeth 35 of that unitare in mesh with the .bevel gear 42 on the shaft 39, so that swingingmovement of the handle 25 about the axis of "the shaft 27 Also, rotationof the handle 25 relative'to the axis of the stud I28.drives .the'bevelgears 33 and 49 to turn the shaft 38; it being understood that'the bevelgear unit '34 and .bevel gear 42 turn therewith, as the result of theengagement between the bevel gear 29 and the teeth 36 of the bevel'gearunit.

.Referring. now to the control mechanism illustrated in"Figs..'5 .10.andlll; with the internal structure depicted in the latter-two figures,that mechanism is enclosed within "a housing 145 which includes a lowerhousing portion -I-46- and an upper cap portion I4I;; the cap portionI41 having a marginal edge overlapped'bya flange I48 on the lowerhousing 'portion to provide a movable and "substantially dust proofconnection therebetween. The controlled part I15, in this instance,vcomprises a spotlightor the like ='-having .a casing. I49fsecured tothe;yoke-46. The upper cap portion IA! of 'the housing is mounte'dgilee"shaft 41'. has a head I5Il atone end andextends 'through the'side"portions'o'f ti 2 oke 4's, and 'the' opposite sides'of the .cap'p'ortion'I 4'l,iisi-.j ourna'lle'd in the-bearing 48 and is provided:with

a screw-cap I52 to hold 'iti'in :place. .Additionally, the-shaft 41 is'drivin'gly connected by keys I53 'to the bevel gear 49, I as well :as.being keyed to one'side'of the yoke 46:at: I 54.

.Integrally formed on the; bearing 48 and-projectingilaterally from the"mid-.portion thereof .is the shaft 52 which, in addition to beinghollow,

gear. 53v issupported relativeto. an internal...boss

I55.-in the lowerhousing portion I46 and,' ,h e 1d ."in" assembled.relationship relative to the j boss 1 by a .hollowstud I56 which.extends through the shaft 52 a d the boss I55. .At its upper n the studI56 has a head I51 mounted within a counterbore I58 in the bearing 48.The stud I56 is held in position relativeto he boss I by vfasteningmeans, .such as a set screw I59; the set screw being accessible from;the exterior of the lower housin p rt o by rem al of a screw plug I60 inthe wall of that l wer 1 0 .5.- ing portion.

The lower housing Portion I46 has a projecting sleeve portion I62 bywhich it is detachably connected to the end of the int rmediate drivingmechanism, Internally of that sleeve portion, a fili rsloeve 163 o adiame er l efir than t e bevel gears 43 and 44 is mounted to facilitatethe assembly and disassembly of the structure. Although this fillersleeve might be a separate P it wn. in the p esent i stanceas beinintegrally formed upon th -end oi the tubula i g 3 e shat-teamed i unalled fo rel e rotation with n the :fi lcr "sl eve J s we as t e hosing 1 my pre erred st ure t sl e e port n 1. f the lower housing'portion is split along one side and is provided with a clamping screwI64, .by which the filler sleeve i locked inplaee relative thereto. .Atits in er end.th.e'fi 1e s e e h asubstantially plane surface whichserves as a ,seat f r ne nd f the vels whichis se u ed t t o tershaft.39. Ad acen the-sc r ".th bevelgear 43 is secured to the inner shaft"38.-

The insulated c nductor J 2 w ch e tend through the h llow inner shaft38 cq lmectsto a pin I65 which extends through the anew stud I56 and .isinsulated therefrom .by an insulating sleeve I66. Theothercndof this pinengages a resilient contact sprin I 6], .as illustrated in Fi 1,:a dhere y mak s a c nnection to an nsu ated.1ead-wire;i 8 wh h. n tu n.extends to the illuminating element of the li ht. A, ess to theconnection between the pin andthe nsulated .wire 2 is provided for by aremovable screw plug .I69at the'hottom-ofthe-hou ngp r- .tiOIl 145.

ro th descr p on of this structural .embodiment of my invention, as wellas by reference to thedescri-ption referring to Fig. 1, .it maybereadily understood that rotational or swinging movement of the handle?abou -mean of th shaft 2"I, as indicated by ,dot and gas}; 1. Q5 at25min. .Fisit pro u s rot tiona m nient o the oontroliodij axrt about hea i o t sha 1 wh reby the age ar ositio o the :l s-h housing mayb :va i..;as I i lu tr t vel -sh w i .dot anddashrlinos149a, 1:49 and l 490mils-'5- Also, it maybe readily understood that rot.ation of the.hand1e25 about the axis. of,-the stud I28 turns the controlled partabout the axis-o f- -the Stud. J 55.

For mounting purposes relative to the windshield: or the like, itis-my-preference to provide a flanged-collar I10 which has a planesurface I12 adapted to be secured-againstthemounting surface and whichincludes a clampin portion 'I'I3 adapted tobe-tightened relative to-the"exterior .of the "tubular housing I38 at a desired position by aclamping screw 4T4, asshown in is substantially like thatillllstlatedlinfjg 2 with parts bearing refercncepumeral 1 1 or u r n ibc nsio ik purp s.

Also

" st ture-oaths nteEmMiatedriving mechanism is substantially like thatdescribed in connection with Figs. 2 and 5 to 11 inclusive, so thatparts bearing reference numerals similar to those referred to in suchstructure are substantially alike. Also, except for the differences ofthe housings and mechanisms of the controlling and controlled partswhich will be particularly pointed out, those illustrated iii-Fig. 12are substantially like those of Figs. 5 to 11 inclusive and bear likereference numerals. Generally speaking, the structure of Fig. 12 variesfrom that depicted in Figs. 5 to 11 inclusive in respect to the angulardispositions of thecontrolling and controlled parts with respect to theaxis of the intermediate driving mechanism. Other than this, there arecertain structural changes in the housings of the controlling andcontrolled portions, in order to adapt the housing structure to thechanges of gearing which exists between the modified forms of Figs. 1and 2.

Having particular reference to the more detailed differences ofstructure of the modification shown in Fig. 12 from those previouslydescribed, it is to be noted that a lower cup portion I'I5 of thehousing for the controllin mechanism has a peripheral end flange I16which is secured to one face of the bevel gear 5'! by fastening means,such as screws I'll. Also, a flange 'I'IB is provided on a peripheralportion of the gear 51, which flange overlaps a part of the upperhousing portion I I9 to establish a substantially dust proof jointbetween the upper and lower housing portions. This same structuraldistinction, applies to the housing of the controlled mechanism, whereinan upper cup portion I18 of the housing has a peripheral end flange I79secured to the gear I5 by fastening means, such as screws I80; the gearhaving a flange I82 thereon which overlies and provides a substantiallydust proof seal with the lower housing portion I46.

Having the aforementioned differences and similarities between this andthe previously 'described structures in mind, it may be readilyunderstood that rotation of the handle 65 about the axis of the stud I28turns the bevel gear 51 to actuate the bevel gear 42 and drive the outershaft 39 which, in turn, turns the bevel gear 44 to actuate the bevelgear I5, thereby turning the controlled part relative to the axis of thestud I16 and in the same direction as the handle rotation. On the otherhand, rotational movement of the handle about the axis of the shaft 64turns the bevel gear65 to actuate the connected gears 69 and I0 relativeto the stud I28, thereby to turn V the inner shaft 38 of theintermediate drive mechanism. Such rotation of the inner shaft turns thebevel gear 43, connected gears I2 and I4 and rotates the bevel gear 89to move the controlled part about the axis of the shaft I9. In thisinstance, it may be observed that the movements effected by therotations of the inner and outer shafts of the intermediate drivingmechanism are reversed. This factor becomes of importance in instancesin which movement in one plane requires the transmission of greatertorque than movements in the other plane, and it is desired .andhousing. in the intermediate driving mechanism. In this form of theinvention, an intermediate drive housing I83 has telescopically engagedsections I84 and I85. As a practical matter, these housing sections maybe of either polygonal section or splined to prevent relative rotationbetween the engaged sections, while permitting their relative extensionor retraction. As depicted in Fig. 15, the larger housing section I85has longitudinal channels I86 and I81 therein which respectively receiveexterior splines I88 and I89 on the smaller housing section I84. In likemanner, an outer shaft I90 has a circular exterior surface journalledfor rotation with the housing and is composed of an outer,longitudinally channelled shaft section I92 which slidably receives asplined inner shaft section I93. Also, an inner shaft I94 includes ashaft section I95 having a circular outer surface and a channelled innersurface, and slidably receives a shaft section I96 which is splined tofit within the shaft section I95. The larger and smaller shafts, in thisinstance, serve the same purpose as the larger and smaller shafts 39 and38, respectively, of Fig. 2, except that in the present instance theshafts and housing of the intermediate driving mechanism may be adjustedin length to meet particular requirements.

In the modification illustrated in Fig. 16, housing sections I91 and I98are polygonal and telescopically slidable relative to one another.Within this housing, an outer shaft includes telescopically engagingshaft sections I99 and 200. The outer surface of the larger shaftsection I99 is circular, so that it is rotatable within the housing. Theadjacent surfaces of the two shaft sections I99 and 200 are splined toprevent relative rotation therebetween, and the inner surface of thesmaller shaftsection is circular to provide a bearing surface for theinner shaft. An inner shaft comprises telescopically engaging andlongitudinally slidable shaft sections 202 and 203; the latter sections.being of polygonal section to prevent relative rotation therebetween.

Figs. 17 to 20 illustrate a structural embodiment of the modification ofmy invention shown in Fig. 4. As illustrated in Fig. 17, the controllingmechanism of the ensemble, except for the precise contours of a few ofthe parts, is substantial- 1y like that illustrated and described withrespect to Fig. 9. The structure and operation of the controllingmechanism, as illustrated in Fig. 17, may be readily understood byreference to the description of the housing structure for Fig. 9

and the description of the gearing for Fig. 4; the

reference numerals applied'to Fig. 17 correspond to those of Figs. 4 and9 and refer to like parts which perform similar functions, in eachinstance.

Although the particulartype of actuating handle illustrated in Fig. 18differs from that of Fig. 17, Fig. 18 presents a general exterior viewin side elevation of the complete structure of the type depicted ingreater detail and to a larger scale in Figs. 17, 19 and 20.

The internal and housing structures of the control mechanism are shownin Figs. 19 and 20. In these figures, as in the others, referencenumerals similar to those used in the description of Figs. 4 and 10refer to similar parts to perform like functions. First considering thehousing structure, a substantially L-shaped lower housing portion 204has a part 205 which receives the enlarged end portion I63 ofthe'housing I38 and which is secured thereto by fastening means, such asscrews 206. An angularly disposed part 201 of the lower housing portionre- ::ceives -:and. :has secured therein ::a :bearing in- :yrsert:2Il8fhaving a peripheral "fiange209 which abuts :the *eridrdfthatpartfor locating :purposes, and'ris secured'in place-by zfastening means,such :ras'screws. 2m. :An :upper and substantially .T- z-shapedthousingrportion I 2 I 2 has" a stem part l 3 whichlfits over andisrotatable relative-tothe up- ;per part of the bearing' insert 2 8 8-about the flange -2209. -Also,=-a'cross portionj2l4 of'thissubstanti-a1-"-ly "LT-shaped upper housing portion receives" and 10311185 at itsopposite ends tubular housing arms 2f5and 2 l6 which are secured'thereto by fastening=means such as-screws- 2 and 'proa'ect in op-'"posed directions therefrom. Internally of the illower'housing portion206, an integrally-formed boss- '21 8:provides one supporting I element.In- =l ternally of the'upper housingportion 2 [2a bear- ";ing'iblo'ck2l9 issecured in place by fastening meanspsuch assscrews 229, andbearing inserts 222 and-223- aresecured-in the adjacent ends of"the*-housing*anns 2l and 2 I6 respectively to-furni'sh*additional=support for the operating parts "of-the-mechanism.

"Within the lower housing portion 264, the

' shafts-of the intermediate driving mechanism are 'suppo'rtedsubstantially as described in connection with the other modifications.In addition, the tubularshaft or'bearing sleeve 168 of the elongatedbevelfgear unit-is-journalled for rotationinthe bearinginsert-2fl8, withthe-bevel gear "portionlflfi at =-oneend'thereof and thebevelgear-portion I01 attire-other "end thereof. In- "ternally-o'f thebearing sleeve 108, the hollow "shaft "109 isyjournalled for'rotation.At its upper-"end,"the'shaft- I09 has "a'locating shoulder -'-'224,while at-its otherend,"the-"shaft-"carries the bevel: gear 110. "As inthe other describedforms, the'i'hollowstud l 56 has a head'portion I 5'!and "-is' securedin"position-trelative'to the "boss 2 I 8 in "thelowerhousing portionQM- bya'set-screw I59 the bevel gear I01, so thatrotation of thebevel-z' gear unit,"zincluding'theibearingrsleeve I08 andbevelgear I06, by rotation of-the shaft 39 .of the intermediate drivingmechanism produces rotationalmovement'of the shaft .3about'itsiloni'gitudinalcaxis. "The'bearing" block, on .the. otherzhand, .is. either secured to or'jis .an integralpart of-l theisha'ft109, so that rotation,thereofithrough tithe 'bevelgears 1 l0 and 43androtation of the is'haft138of-Lthe' intermediate driving mechanismswings the-entire upperportionof the controlled mechanism about the axisof the shaft I09.

For making electrical connections to the controlled-parts, theinsulated-lead wire 242.cxtends "irthroughzthe hollow inner shaft --ofthe'tintermediate control mechanism and is connected to a projecting endof the pin 565 which extends through and is electrically insulated fromthe hollow stud I56. At its upper end, this pin engages a contact spring225 and thence makes contact through a spring 226 with an insulatinglysupported ring 227 and a screw 228 with a conductor 229, which latterconductor extends to the con trolled parts and is separated byinsulation 23!) from the shaft I I3.

From the foregoing description and reference to the;accompanyingdrawings, .ittmay' be readily appreciated that-my disclosedcontrol mechanism provides for the substantially universal movement andpositioning-of a controlledpart, within limits, by movements intransverse planes corresponding to the movements of a controlling .part.It further provides for selective and independent movements intransverse planes iby ea mechanism whichis compact andcap'able ofenclosure. Also, .my disclosed'remote control'mech- .;:anism, asillustrated, is susceptible .to modifications and variationsadapting itto a large variety .of uses.

While I have illustrated a preferred embodiment of my invention. manymodificationsrmay be'made without departing fromthe spirit of itheinvention, and I do not Wish to be limited to the precise details ofconstruction set forth, but idesireto avail myself of all changes within'thescope of the appended claims.

Having thus described my invention, swhatfl claim as new and desire tosecure by Letters Pat- 'ent of the United States, is:

l. A control mechanism comprisingincombination, controlling andcontrolled par-ts =eachiin- "cluding a shaft portion providing-anaxis-of rotational movement and having'a first bevelgear 'drivinglysecured to the shaft portiongmeans'pro- *viding bearings rotatablysupporting the-shaft portions of the controlling and controlled-parts,each of said means having a second bevel -gear drivingly secured theretoand'disposed in a plane transverse to the plane of thefirstbev'elgear-in 'each instance, a third bevel gear unit for-each ofthe controlling and controlled parts and-supported for rotationindependently of the second bevel gear, said third bevel gear unitin'cachinstance having coaxial gear parts presentingiconcentric and axiallyspaced teeth in- 'angularly 0pposed relationshipand disposed in planesparallel to theplane-of the associatedsecond bevel gear, 'oneof thegearpparts of each'of the"said"t'h-ird bevel gear units being-inmeshwith 'oneiof 'the first bevel'gears," and intermediate 'drivingmeansincluding bevel" gears at opposite "ends, "one of which latter mentionedbevel gearsxat each; end

' ofthedrivingmeans is in'mesh with the'second bevel gear andtheother ofwhich is in-mesh;with the *gear partother than :saidone on the. third"ibevel' gear'unit.

and wherein said meansprcviding vbearingsl for "lithe vJshaft,portionsand said. second bevel ;.gears of each of .the controllingand-controlled parts are. separated axially of one =another rand have anintervening connecting shaft providinga hear- ;ring vjournalled in thethird zbevel gear :unit.

4. A: control mechanism. as definediin claim and whereinsaid-intermediate driving .meanssem- -rbodies"telescopically extensibleshafts connecting the bevel gears at the opposite ends thereof.

5. A control mechanism as defined in claim 1, and wherein saidcontrolling part comprises a manually operable handle, and said bevelgears and intermediate driving means are inclosed in a housing havingadjoined parts.

6. In a control mechanism, the combination at each end of anintermediate driving mechanism comprising a supporting structure,transversely disposed shafts carried in adjacent relationship by thesupporting structure, a movable part supported relative to saidsupporting structure by said shafts for rotational movement intransverse planes relative to the axes of the shafts, a first geardrivingly secured to the movable part and mounted for rotation relativeto one of the shafts, a second gear drivingly secured to said movablepart for rotational movement therewith and relative to the axis of theother of the shafts, and a gear unit mounted for rotation relative tothe axis of said one of the shafts and having teeth in meshingrelationship with the second gear, said gear unit also having additionalteeth spaced from the first mentioned teeth thereof, said intermediatedriving mechanism including separately rotatable shafts, each of whichhas gears at each of said opposite ends, and the gears at each of saidopposite ends of the intermediate driving mechanism being drivinglymeshed with said first gear and said additional teeth of the gear unitrespectively.

7. A control mechanism comprising, in combination, controlling andcontrolled parts each including bevel gears mounted in transverse planesand having intersecting axes of rotation, and

means supporting said gears of each part for rotation relative to theirrespective axes of rotation,

. intermediate driving means including additional bevel gears drivinglyconnected with the bevel gears of both the controlling and controlledparts and connected by motion transmitting elements,

and an actuating member drivingly connected to each of the bevel gearsof the controlling part in a manner such that movements of the actuatingmember in each of two transverse planes separately efiects movements ofthe bevel gears connected thereto and thereby drives the gears of theintermediate driving means and controlled part, the bevel gears of thecontrolling and controlled parts being substantially alike, and therotation relative to their respective axes of rotation, intermediatedriving means including additional bevel gears drivingly connected withthe bevel gears of both the controlling and controlled parts andconnected by motion transmitting elements, and an actuating memberdrivingly connected to each of the bevel gears of the controlling partin a manner such that movements of the actuating member in each of twotransverse planes separately effects movements of the bevel gearsconnected thereto and thereby drives the gears of the intermediatedriving means including a gear at each end thereof meshing directly withone of the gears of each of the controlling and controlled parts andanother gear at each end of the intermediate driving means which acts 16through an intervening gearunit for effecting a driving connection tothe other of the-gears of each of the controlling and controlled parts.

9. Apparatus for enabling intermediate drivers having the same type ofmovement and extending in the same direction to transmit angularmovements about intersecting axes from a driving part to a driven part,said apparatus including a first device comprising a pair of membersrotatable about a first axis and drivingly connected separately to theintermediate drivers, a pair of meshing bevel gears, means securing onebevel gear to one member coaxially therewith against rotation withrespect thereto, means mounting the other bevel gear and the drivingpart for bodily movement with the other member about the first axis andfor rotation with respect to the said other member about a second axistransverse to the first axis, and means securing the driving part to thesaid other bevel gear against rotation with respect thereto about thesecond axis, said apparatus further including a second device similar tothe first device but with corresponding elements, but being associatedwith the intermediate drivers at a region spaced therealong from thefirst device and with the driven part instead of the driving part.

10. A drive unit comprising a first member formed of spaced gears and afirst shaft joining the gears against rotation with respect to oneanother, one of the gears being a bevel gear, a third gear rotatablymounted on the shaft between the first mentioned gears and carrying lugsprojecting on opposite sides of the bevel gear and therebeyond, a secondshaft rotatably mounted in the lugs transverse to the first shaft so asto be bodily movable with the third gear about the first shaft, anotherbevel gear meshing with the aforementioned bevel gear and secured on thesecond shaft against rotation with respect thereto between the lugs, anda control part secured to the second shaft against rotation with respectthereto, both the said other bevel gear and-the control part beingrotatable with the second shaft about the latter as an axis. FRED S.BOYER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 501,415 Garey July 11, 1893504,994 Neller Sept. 12, 1893 1,061,701 Stumpf et a1 May 13, 19131,213,238 Nickels Jan. 23,1917 1,284,818 Toepfer Nov. 12, 1918 1,448,791Cofieen Mar. 20, 1923 1,833,574 Hirsch Nov. 24, 1931 2,431,290Wildermann Nov. 18, 1937 FOREIGN PATENTS Number Country Date 682,765Germany Oct. 21, 1939

